Machine eoe cutting and heading wire foe the manufacture oe wood



@TED sTATns PATE THos. w. ininviiv, orv nouenkniirsm, NEW YORK.

MACHINE :con CUTTING AND HEApING wmnron THE MANUFACTURE oF woonsoREws.

speeication of Letters Patent 14e,V dated March 25, 1837.

To all whom t may concern Be it known that I, THOMAS YV. HARVEY, of Poughkeepsie, in the county of Dutchess and State of New York, have invented a new and useful improvement in machines for cutting and heading wire for the manufacturefof screws commonly called woodscrews, and which may'also be applied to the heading of rivets, &c.; and I do hereby declarel that the Vfollowing is a full and exact description of the construction and operation of the said 'machine as invented by me, reference being had to drawings anneXed. i A Y v The v'letters of reference employed in the following description identify the same corresponding parts ofthe machine in the differentv figures in the drawing there being one perspective view of the whole machine and' thirty-one sectional figures illustrating it. The size of all the parts are given by the scale of inches. AThe machine here described is of the largest size which I have used. IV employ two of less size, but they are in allrespects similar in'construction.

` Explanation of the drawing.

Figure A1, shows a perspective view of the machine. Fig. 2, shows a top view of most of its parts. 4' Fig. 3, shows a side view giving the location of certain parts. Fig. 4, shows a side view of toggle joint, piston, lifting arm, counter ycam arm; heading punch, &c. Fig. 5, shows a top vview of the moving part of feeding table giving the situation of tightening cams and straightening rollers, check screws,&c. Fig. 6, shows a cross sectional view of piston, heading punch, yoke screw, guides for piston and their adjusting screws. Fig. 7, shows a side view of the moving part of feeding `table with the feeding tongs attached and showing the connection with the rock shaft that moves them. Fig. 8, shows a top view of the hold fast tongs. Fig. 9, shows a top view of the feeding tongs. Fig. 10, is an end view, showing the arrangement of the cutting lever and grip lever with their bearings, connection 4with the cams and with the cutter and die clamps. Fig.

11, shows a reversed end view, showing the situation of the feeding cams, the fastenings of the top part of frame piece with the i stand, &c. Fig.y 12, shows a side and edge Fig. 13, shows the Y gives the transverse movement tothe feedn ing table. Fig. 16, shows a side view of the cam operating on the tightening cam" of hold fast tongs. Fig. 17, shows a side View of the counterV cam to' main cam and its posltion to vsaid cam. Fig. 18,'sh`ows a side view of the cam which lifts the pistoni Fig. 19, shows a side view of cutting cam. Fig. 20, shows a side and edge view of lever Vfor tightening the feeding tongs. Fig. 21, shows a side and edge view of lever giving'the transverse movement to feed table. Fig. 22, shows a side andl edge view of lever for tightening rthe hold fastl tongs. Fig.` 28', shows a top view of lifting arm to raise the piston. Fig. 24, shows an end View of lifting arm showing the connecting bars and rollers onl top of piston. Fig. 25, shows a shackle bar connecting the lifting'arin with the frame piece. Fig. 26, shows a shackle bar connecting the lifting arm with theV top roller on piston. Y Fig. 27, shows a cross section of the piston. Fig. 28, shows an'end view of the arm of counter camiof toggle joint. Fig. 29, shows the' box and guides for the part of the piston where'it connects with the toggle joint. Fig. 30, shows the piece of casting forming the seat rfor the tightening lever, &c. `Fig. 31, shows an end viewof thetightening cam of hold fast tongs showing its bearings and-xtures and arm for moving it. i

i Fig. 1, A, A, A, A; Fig. 2,/A, A; Fig.3, A, A; Fig. 4, A; Fig. 6, A, A; Fig. 10, A, A; Fig. 11, A: Part of the frame work or superstructure ofthe vmachine fastened at the corners to stands B B, by screw bolts at a, Fig. 1, a, a, Figs. 10 and 11, a, a, @,a, Fig. 2, and a, a,`Fig. 3; f

Fig. 1, B, B; Fig. 2, B, B, B; Fig. 3,

VB, B, B; Fig. 10, B, B; Fig. 1l, B, B;

stands or end pieces for the frame.

Fig. 1, C, C, C, C; Fig. 3, C: Side rails bolted to stands B, B, shown at m, m, Fig.

10, and m, m, Fig. 11, which rails constitute'l the base for the plumbing boxes, H H, and D, D, Fig. 1.

The above parts constitute the superstructure of the machine.

Fig. 1, D, D; Fig. 3, D, D; Fig. 11, D: Plumber boxes for side shaft E bolted to side rail C C, by the screw bolts4 at n, n, Figs. 1, 3, and 11.

Fig. 1, E; Fig. 2, E; Fig. 3, E; Fig. 10, E; Fig. 11, E: Side shaft resting on plumber boxes D D and connected with main shaft G, by bevel gears F, F, Figs. 1 and 2.

Fig. 1, F, F; Fig. 2, F, F: Bevel gears equal size.

Fig. 1, G, Gr; Fig. 2, Gr; Fig. 3, G; Fig. 4, G: Main shaft resting on plumbing boxes H H, Fig. 1, and H, Fig. 3.

Fig. 1, H, H; Fig. 3, H: Plumber boxes for main shaft resting on side rails C, C, C, C, Fig. 1, and fastened by screw bolts at 0,'Fig. 1, and 0 o, Fig. 3. Y

Fig. 1, I; Fig. 4, I; Fig. 17, Main cam on shaft Gr working against the stop J. Said cam is cast solid on the shaft having a rub steel at Z, Figs. 1 and 4.

Fig. 1, J; Fig. 4, J: The stop'or lower part of toggle joint which we some times cast separate and fasten as at c, Fig. 1, but more commonly solid as shown inv Fig. 4.

Fig. 1, K, K; Fig. 2, K, K, Fig. 4, K, K: Toggle joint connected to piston L by joint pins as at cZ, Fig. 1, d, (Z, Fig. 2, and aZ, Fig. 4, and to the frame by joint pin e, Fig. 1, e e, Fig. 2, and e, Fig. 4. These joints are all made with rub steel, the pins also. are steel hardened. The toggle joint works with open faces at j", Figs. 1, 2, and 4, guided by tooth p, Fig. 4, and kepttogether by spring g, Figs. 1 and 4, pressing against the projecting piece q, Fig. 4, and bolted to cross bar r, Figs. l and 4.

Fig. 1, L; Fig. 2, L; Fig.4, L; Fig. 6, L; Fig. 27, L: Piston working in slides at z, Fig. 1, L, z,'Fig. 2, and H,'Fig. 29, at one end and between guides i Z, Figs. 1, 2, and 6, and i, Fig. 3, which guides are regulated by temper screws as shown -in Fig. 6. The piston contains the heading punch j, Figs. 1, 2, 4, 6, and 27, Aand is fastened by yoke screws 7c lc, Figs. 1 and 2, and a'Figs. 6 and 27, and regulatedby screw key at Z, Figs. 1, 2, and 4.

Fig. 1, Nf, M; Fig. 3, M; Fig. 12, M: Die clamps forming a joint on pin s, Figs. 1, 3, 10, and 12, which pin rests on stand B, Fig. 10, and stands t Figs. 1, and 3. Said stand t rests on side rail C, C, C, C, Fig. 1. Said clamps .contain the dies u Fig. 12, and are held open by spring fu, Fig. 12. Said dies are made four square and are drilled on all sides so as to form 4 sets of dies and are held to their place by screw pins fw fw 'w fw, Fig. 1, and w w, Fig. 12, and correspond to the length of screw to be made, The figure at the left and opposite to Fig. v12 shows an inside edge view of one half of the clamps with the die placed in and shows the cavities for spring fu, Fig. 12, also the cavities made to admit the heading punchto rise and fall in making short screw blanks.

Fig. 1, N; Fig. 10, N, N: Cutter. resting on pin s, Figs. 1, 3, 10, and 12, and connected by shackle bar m, Fig. 10, to the cutting lever y, Figs. 1, and 10. Said cutting lever is regulated and secured in box by key f f, f f, Fig. 10, and f f, Fig. 1.

Fig. 1, C; Fig. 14, C.; Fig. 2, C: Main tightening cam for feed tongs being an eccentric groove cain worksthe lever e, Figs. 1, and 20. The shackle bar bvb, Figs. 1, and 5, has a swivel joint at a. a, shown at Fig.

20. Said lever is attached to side stand c c,

Figs. 1, 3, and 30. The shackle bar Z) b connects with the arm cZ d, Fig. 5, which moves the 2d tighteningcam e c, Fig. 5.

Fig. 1, P.; Fig. 2, P; Fig. 14, P: Eccentric groove cam givin the transverse movement to the part vof ceding table g g, g g, g g, and g g, Fig. 1. Said part slidesA in guides 7L 71 L 71., 'h L, and z, 71 Fig.` 1, and moves precisely with the motion of the cutter N, Fig. 1, and N, N, Fig. 10, and gives a cross, motion tothe wire agreeing with said cutter. Said cam works lever i e', Figs; 1, and 21. 1

Fig. 1, Q, Q; Fig. 2, Q: Main tightening cam for hold fast being an eccentric groove cam and works lever g g', Figs. 1, and 22, which lever is attached by shackle bar 7c 7c, Fig. 1, to arm Z Z, Fig. 31, which arm is attached to and drives the 2d tightening cam m, m, Figs. 1, 31, 2, and 5.

Fig. 1, R; Fig. 10, R: Cutting cam being an open Vcam on the face except at n, n, Figs. 1, and 10, which is a shield or defender to bring back the Lever working against a steel pin projecting on the back side of said lever at the bottom s s, Fig. 10, shows the cutting steel.

Fig. 1, S; Fig. 10, S: Open eccentric cam, working against the grip lever o, 0, Figs. 1, 10, and 12, which lever swings on journal g g, Figs. 10, and 12, in a box regulated by key r r, r r, Fig. 10, and carries up the piece 72 29, Figs. 10, and 12, against the die clamp M, Fig. 10, which piece is hardened steel with its bearings,

Fig. 1, T; Fig. 17, T: Counter cam to main cam I, Fig. 1, an open eccentric working against the arm t t, Figs. 1, 4, and 28, and serves to bring down the toggle joint in rapid speed.

Fig. 1, U; Fig. 18, U: Lifting cam to raise the heading end of piston L; it is an eccentric groove cam, working the arm u, u, Figs. 1, and 4, which arm is swung on pivot at Fig. 1, attached to the frame piece A, and connected with cam by steel pin 1/ y, Figs. 1 and 4, and held up to cam by the guide z z, Fig. 1, which is fastened to side rail C. Said arm is connected by regulating screws to swivel joint arm 0;, a, a, Fig. 1, by the shackle bar fa, lv, Figs. 1 and 4, which shackle bar is attached to lifting arm w w, Figs. 1,4, and 24, which lifting arm is attached to frame at Z9 b b', Fig. 1, and to shackle bar cc c, Figs. 24 and 26, which shackle bar is attached to roller e4 e e, Fig. 24, shackle lbar Z Z (Z, Figs. 24 Vand 25. The other end is fastened by screw pinpivot to inside of frame on which the bar turns when the piston rises and falls. Y

Fig. 1, V; Fig. 2, V; Fig. 19, V1: Feeding cam, an eccentric groove cam. The shackle bar f f 7", Fig. 3, is worked byA this cam,'by pin g2 g2 g2, Fig. 3, and swings on pivot at z. h it', Fig. 3, the shackle bar connected with arm of rock shaft at y' j, Figs. 13, l,

and 3. This shackle bar slides up and down on arm f f f, and j j y' to regulate the length of feed. The rock shaft 7c lc 7c, Figs. 1, 3, and 13, has arms Z Z Z, Figs. 1, 7, 13, and 2, connected by shackle bars m 'mf m, Fig. 7, to the slide Y, Fig. 1.

Fig. 1, W; Fig. 2, W: Frame piece for feeding table and is attached to stand B at n fn, n, Fig. 10, and forms a base for the cross slide X Fig. 1, by the guides ZL. Z1., h' ZL, L h, Z1. 71 Fig. 1

Fig. 1, X; Fig. 5, X: Cross slide of feeding table to which is aHiXed the hold fast tongs and Figs. 1, and 8, and the 2d tightening cam m, m, by the piece at Fig. 31; also the straightening rollers 02 o2 02, Figs. 7 and 5, and the check screws p, p, p, Figs.` 5 and 7., which overcome the momentum of .metal under quick speed.

Fig. 1, Y: Feeding slide working inv guides y' j, j, 7' y', Figs. 1, and 5, and to which the feeding tongs e, Figs. 1 and 9, are affixed, also the tightening cam is attached.

Fig. 1, Z; Fig. 9, Z: Feeding tongs thrown open by springs q g g Fig. 5, and fastened by the cam e e, Fig. 5, to the wire and having temper screws and rollers working against the cam as at 1" a' r, Fig. 31.

Fig. l &: Hold fast tongs thrown open by springs and closed in the same way as above. s s s, Fig. 2, guide to hold the clamp up to cutter 15 t t, Fig. 3, a hollow pillar to sustan the frame and sidel rails by the bolt u u u, Fig. 1; o o o, Figs. 2 and 3, a piece to sustain the frame and keep it from spreading. w w w, Figs. 10, and 11, shows the manner of attaching the stands of the side shaft E.

Use cmd operation:

The wire is placed on the reel one end of which is passed along through the straightening rollers o 0 0, and then on between the feed tongs Z and hold fast tongs and through the steel of the cutter N, into the dies. The machiney put in motion, theV cam S works die clamp and grips the wire when the cam R works the cutter N and vcuts the wire .against the backY die-and closes up the f die by the steel of the cutter passing by the hole of the die about an inch at the same instant and agreeing with the motion Vof cutting, the cam P gives the transverse or cross movementto the feed table X which prevents crooking the wire between the hold fast tongs and cutter; V'neXt the heading punch and 'piston moves up by the action 'of main cam I, and strikes on the head;

Athe die) in the meantime and during the heading operation the cam Q having closed `the hold `fast tongs on the wire, and cam O having opened the feed tongs, the cam V thrown back, ythe .feed tongs and brought the ysliding piece. Y against the temper screwsp p p, the feed tongs again closed upon the wire, and the hold fast tongs open. When by the cam V acting on thev rock shaft, brings forward the slide piece Y toV the counter screw y) p p with the feed tongs and; of course brings kforward the wirev again into the die at the same time shoving and discharging the finished blank ne'Xt before headed out of the die, when the piston falls ready to move up, and the hold fast tongs again grips the rim and the operation is continued as above described making a screw blank every revolution of the maink shaft G. The shackle bar at J J J, is dropped down on the arm of the rock shaft and also at the other end on the arm 7 f f to lessen the length of the'feed, and raised up to increase it; always turning the temper screws p p p, Vto correspond therewith, and to agree with the length of screw desired to be made; the length of the die is always the length of the screw when countersunk heads are made; when button heads or piano screws are made the die is the length of the body of the screw exclusive of the head; a cavity of the form of the head is sunk in the end of the heading punch. The screw key Z in piston L always adjusts the heading punch-the same punch answering for a number of lengths of screws by substituting keys of different thickness immediately before the schew key; thesev keys are made of steel as is also the heading punch. It will be perceived either the feed tongs or hold fast tongs have constantly hold -of the wire and consequently a uniformity in feeding is secured.

soV

What I claim as new in this machine and desire to secure in Letters Patent is:

l. The construction of the die clamp and the manner of gripping the dies and of affecting the rise and fall of the piston.

2. The particular arrangement and construction of the moving parts of' the feed table.

3. That part of the main toggle joint which differs from one described in a pate ent7 granted to me for a machine for'heading rivets and screws on the 29th of June 1833; in that machine, as therein described there was'a joint to the step part at 0, with an arm and spring back of the step. In this case the joint, back arm and spring are dispensed with, the back part of the toggle joint and the vertical piece and step J are THOS. W. HARVEY.

Witnesses:

GEO. N. MINER, JAMES FROST. 

